We're trying to introduce support for writeback connectors, a way to expose in DRM the hardware functionality from display engines that allows to write back into memory the result of the DE's composition of supported planes. Although this is a rebase of v4 with all the comments addressed, I'm not expecting people to remember any of the previous versions, please review this as if it is a new series. Patches have been originally implemented by Brian, I've done the v3 and v4 updates to them. Best regards, Liviu Changelog: - v5: Addressed comments from Brian Starkey. Old v4 changes are here: https://lists.freedesktop.org/archives/igt-dev/2018-November/006806.html - v4: Rebased on the latest i-g-t and switched to the igt_output_xxx() call as suggested by Maarten. v3 is here: https://lists.freedesktop.org/archives/intel-gfx/2018-March/157394.html Maarten's comments came a couple of months later :) https://lists.freedesktop.org/archives/intel-gfx/2018-June/169027.html - v3: I've now dropped all the changes that were trying to split the CRC functionality out of lib/igt_debugfs.c. v2 is here: https://lists.freedesktop.org/archives/intel-gfx/2017-July/133154.html - Added meson support for builting the kms_writeback test Brian Starkey (6): lib/igt_kms: Add writeback support kms_writeback: Add initial writeback tests lib: Add function to hash a framebuffer kms_writeback: Add writeback-check-output lib/igt_kms: Add igt_output_clone_pipe for cloning kms_writeback: Add tests using a cloned output lib/igt_fb.c | 66 ++++++ lib/igt_fb.h | 3 + lib/igt_kms.c | 157 +++++++++---- lib/igt_kms.h | 11 + tests/Makefile.sources | 1 + tests/kms_writeback.c | 492 +++++++++++++++++++++++++++++++++++++++++ tests/meson.build | 1 + 7 files changed, 693 insertions(+), 38 deletions(-) create mode 100644 tests/kms_writeback.c -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
